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Flux Ratio [Ne v] 14.3/24.3 as a Test of Collision Strengths

Published online by Cambridge University Press:  26 May 2016

R.H. Rubin
R.H. Rubin*
Affiliation:
NASA Ames Research Center, Moffett Field, CA 94035-1000, USA

Abstract

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From ISO [Ne v] 14.3/24.3 μm line flux ratios, we find that 10 out of 20 planetary nebulae (PNs) have measured ratios below the low-electron density (Ne) theoretical predicted limit. Such astronomical data serve to provide important tests of atomic data, collision strengths in this case. In principle, well-calibrated measurements of the [Ne v] 14.3/24.3 flux ratio could improve upon the existing atomic data.

Type
Part 2. Origin
Information
Symposium - International Astronomical Union , Volume 217: Recycling Intergalactic and Interslettar Matter , 2004 , pp. 190 - 191
Copyright
Copyright © Astronomical Society of the Pacific 2004 

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